2021 Tesla Model 3 heat pump & octovalve real world test
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- เผยแพร่เมื่อ 8 ก.พ. 2025
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Sandy told us that tesla is the best by design, Bjørn proves it in the real world. Perfect collab haha
Sandy only likes the current Y. Until he sees a 3 made the same way, he'll hate the 'car' part until then.
@@kaasman78 yeah, would like to see a sandy compare, old vs new 3. And see what changed on technology and manufacturing bases. I think he will be blown away
@@jeffreysteijn9324 Maybe...but I think the current 3 is still a patchwork like it was. Only with some new tech. Don't know if the 3 will get big castings until the structural batterypack with fat cells is released. But still would love to see of there's a difference already.
@@kaasman78 true, you never hear news about a casted rear or front for the model 3. I agree that the m3 will be completely renewed when it gets new battery tech and castings. Looking for it, but my guess it will take a while, probably last one in the series
@@jeffreysteijn9324 Elon said that the new tech: Structural battery pack, mega casting and 4680er cells are tested with extreme high manufacturing risk with the Model Y from Giga Berlin. Then when everything is flushed out, it will go to every other Tesla.
This is really, really good Bjorn. Excellent detail and forensic insight into how the Octovalve is working. Nice series of tests. Thanks
Decision is made. My next car will be a Tesla Model 3. Thank you for your extensive tests!
Mt as well 👍💪 black or white?
@@AI-CHS Blue! Because my actual car is blue too. Most of the cars are black, white or silver and blue is a little bit different
@@riker158 Blue looks also great. i get the black one
@@haveaseatplease i take the performence, hope i want get disappointed about ;)
@@haveaseatplease Sorry but I can’t believe this. This contradicts everything that is known about the LFP Chemistry. LFP is the most robust technology you can get on Lithium Batteries
Seems you estimated the efficiency effect of the heatpump really well. Thanks for this great test!
Sometimes I like to think I'm an EV nerd and then I watch a bjorn video. Crazy smart, thanks for the awesome information.
Thank you Bjorn ! I finally understand the concept and impact of the octovalve.
I LOVED this insight video on how Octovalve works! I'm so happy to have the opportunity to follow your channel. Thanks a lot.
Quick math: 450kg * 30K * 1kJ/kgK = 3.75kWh effective battery capacity stored in heat between 50°C and 20°C.
That should be a good ballpark number.
specific heat capacity is J/(g*K) or kJ/(kg*K) though.
thanks for this math, thats great info.
1kJ/kgK? Maybe for the metal...but the coolant surely has a higher number than that and represents a significant 'buffer' I think.
@@kaasman78 Nickel is only 0.45, and coolant at most 10% of the weight. Let's call it +/- 50%.
@@niwasox3 I stand corrected...😉
Every Tesla fanboy was dismissing the value of a heatpump, because Tesla didn't have it. Now Tesla has it, and it's ThE bEsT tHiNg In ThE wOrLd !!
You failed to understand the content of this video. The heat pump itself is not that big. It how Tesla used it. Watch the video.
@@bjornnyland I wasn't talking about your video, but about the majority of comments I had to read whenever an EV with a heat pump was discussed.
@@abraxastulammo9940 For people living with mild winters between -5 and 10 a heatpump is a good idea. Also because it lowers the range difference between summer and winter. I think that might ease the mind of a lot of people. 5kWh extra battery gives you less benefit, especially in fast charging cars driving around in a dense charging network.
I feel like this video demonstrates all the reasons why Bjørn is the best EV tuber out there. He goes the extra mile (!) to test the limits of the technology. Good shiiiit!
BTW, you want to get yourself on Sandy's show to discuss how his theory aligns with your practical findings. (Especially after calling him an "old fart"! 😂)
For those who haven't watched the video, Bjørn immediately adds the /sarcasm after that, to be clear.
Good to see Tesla catching up to VW. ID.3 does all the same stuff shown here. Can move heat from battery to cabin or vice versa. Can heat or cool battery or cabin independently. Also ID.3 heat pump works down to -25C, unlike Tesla... BTW, e-tron knows all these trics too...
ID3 coldgates because it doesn't heat up the battery while driving. And it doesn't preheat the battery before fast charging. Don't get me wrong, ID3 is an awesome car. But nowhere near Tesla. And VW better start fixing all the software bugs:
insideevs.com/news/451790/vw-id3-multiple-bugs-mind-the-explanation/
ID.3 is using CO2 (R744) as refrigerant, that is why ID.3s heatpump is so efficient and good below 0 degree Celsius. ... btw also e-golf 1. generation had a heatpump (but wothout CO2). Tesla is catching up in this field but not overtaking. Thx bjorn for you reports!
Battery heating is not yet implemented in ID.3 SW. That comes in next update (that is ready now and delivery is starting). Do not get me wrong, I much appreciate your work and videos, the best on youtube. But facts are facts, what comes to topic of this video - Tesla Model 3 is now on par with ID.3
@@bjornnyland correct. There is no preheating before the fast charger. But this is a software issue. The heatpump works very comparable. Also the results are identical. (7% less consumption with heatpump and slower charging with heatpump; ref th-cam.com/video/6nJamTspSM0/w-d-xo.html
@@Jani75K Are you serious? ID.3 cooling system is miles away from MC Hammers. I seriously doubt that with v3 Superchargers the ID.3 can keep up with a Model 3 travelling speed.
I want a winter test of the ID.3, I don't believe it will heat the battery in such a innovative way. Model 3 uses motors and heat pump to do so. How awesome is that. ID.3 needs extra equipment for that? VW officially admitted that they are at least 4 years behind. I say they are 10 years behind, considering they didn't even start to build something like a supercharger network yet.
My 2019 Nissan Leaf has a heat pump, and it works great - quick heating and cooling. I understand the Leaf was one of the first EVs to offer a heat pump to save drain on the main battery pack.
No, it's not. EVs from 2013 had heat pumps.
@@bjornnyland I didn’t say it was the first, just one of the early EVs (2013 in fact). Either way, Nissan offered it before Tesla by several years.
@@bjornnyland @EGL898 is correct. The Leaf was the first mass produced EV with a heat pump. Tesla is not ahead. This is an old technology. It's shocking they just put the first heat pump recently.
I guess future software updates will make it even more efficient. We have a 2019 SR+, these cars are so damn good.
Excellent coverage as always Bjorn reigns supreme Tesla TH-camr!
Brilliant video Björn - I love the data and the insight.
To my surprise I watched all 35 mins of this: fascinating!
Bjørn at his best, a real EV scientist!👍
Really interesting test! Would love to see you test the charge speed on the new model 3 when the battery gets enough time to preheat!🙂
These detailed reviews are great. Seen so many reviews that pay no attention to the speed and efficiency of battery usage
I think the Koreans may be the closest with their heat pump design taking heat from all motors and the batteries on e-niro and Kona.. Yes they need to sort the battery heaters and charge speeds but I guess their new 800V cars from next year may well sort that bit.
Lower charge speed is because the cars are designed with the older CCS protocol (max. 200 A ) . So it is only a mater to use newer protocol to increase the speed.
@@ivand911 newer Ioniq, same protocol, way worse charging power...
This is why I'm subscribed to your channel. For the technical and very detailed insight into the cars. Keep it up and give us more of this. 👍 Good work
We are already waiting in awe for the tests to come when The Roadster and Model Y( the ones with that new BIG ass Phatcells) arrive at your house! Ok, in Norway then! ;)
Always in the future present with Tesla Bjørn.
Excellent video!!! You should re-do this comparison in the summer too, to see the heat pump how efficient is in cooling the car, the battery, etc. and compare with mc hammer ! Thanks for your work!
Clearly the best EV. From a tech/efficiency point of view at least. I hope the reliability/build quality will continue to go up. Model 3 from Berlin, the perfect car?
Excellent job as usual Bjorn, the best reporter driving the best car :)
Interesting video Bjørn. Thanks for your hard work! Octovalve ftw.
Best deep dive of Tesla octovalve. Thanks for sharing!
It would be good to test the VW ID3 with heat pump before coming with claims like... “ Tesla is 5 years ahead of any other manufacturer”. But hey, the channel is called Tesla Bjorn, so what else could be expected
www.businessinsider.com/tesla-10-years-ahead-of-competition-manufacturing-expert-sandy-munro-2020-10?r=US&IR=T
And the channel is not called "Tesla Bjorn", it's called "Bjørn Nyland". You need thicker glasses.
Thank you again for a well-researched and fantastically explained video. As it is always with Tesla, every car will be better than the one from a few months before; that's the advantage of a company that doesn't wait 5 years to make a change but does it every time an improvement is developed.
Hey Björn,
thanks for your fantastic videos.
Many times the subject of your newest videos is exactly what i wanted to know next 👍 .
Which battery is inside the tested 2021 Model 3? 77, 79 or 82?
Keep going.
Kind regards from Germany 🇩🇪
79 kWh
Thanks Bjorn, your summary testing is awesome and worthwhile as always.
A year ago a senior engineer at Tesla (ex Lotus and an old mate of mine) said the best non-Tesla electric that he was most impressed with was the 28kWh Ioniq.
IONIQ 28 FTW 👍🏁
Ioniq is very nice. But it has no heat scavenging of the motor (heat goes out through the hood). And battery is just air cooled. And no preheating of the battery before fast charging.
@@bjornnyland It has. I know it, because my heat-exchanger was kaputt due to a marten bite. And the battery (28 only) doesn't need preheating. Cobalt for win. NMC 111. IONIQ charges fast, also with frozen battery (OBD: temperature battery - 2°C).
@@bjornnyland I don't think he considered it superior in any way - more than Hyundai were the only manufacture doing things that impressed him.
Yeah I think Kona and e-niro with heat pump are moving them forward and the motor efficiency also. 👍
It is quite nice that you can verify Sandy Munro's assumptions about the design.
I think the reason why Tesla is and will be far ahead in EV design is that they are not financially or otherwise distracted by fossil thinking (pun intended in every way). Good job.
Bjørn, the EV whisperer 😄
Man, your dedication to the cause is unmatched
Cool test, and impressive result. Same car, same price, more range, more features.
Tesla is doing the good stuff.
We have a November of this year purchase of a 2021 MY. Of course it has the heat pump so should be fairly efficient. Should have waited for the updates that are coming. However, these cars are actually fun to drive, so we enjoy our purchase.
Hey. Thanks for that. Will pick up my Model 3 P by end of year. It would be great to see a schematic of the HVAC system. Building airsourced heatpumps will ice up at certain conditions and have to be iced. I wonder how Tesla managed to solve that.
Thanks Bjørn - really interesting. There’s only you to make such detailed tests - no mainstream auto reviewer does that. Great stuff! One question: 173 vs 195 WH/km: what proportion of that could be due to (1) aero wheels and (2) LR non-performance vs performance (rather than heat pump)? Half of the difference perhaps?
Love your expertise, best tester channel there is!
Bjørn, you mentioned twice that your feet feel too warm. I notice that too in my M3 when keeping the climate control on Auto. Maybe you find time to take a closer look into this problem. It happens when the car is driven for long when the battery is warm or after supercharging. Hot air in the legroom, cold air venting out above.
Very nice video! I've been waiting for this. Just thinking that you fooled the cars that it wasn't going to supercharge. I hope you will do 1000km challenge also!
I love your videos!!! Watching you from Romania!
@@GOPRO-hw6lf i would recomend the Nord area-Maramureș, the Carpatian mountains, the black Sea, Delta dunării, Bucharest
Great video Bjørn! ive been curious to see the differences for awhile! so thank you!
When you treat heat as a precious resource you make a better EV it turns out.
They should follow Ford's testing of colors to physiologically make the user feel warmer or cooler. Based solely on the lights various colors.
I kid you not the team Edison peeps who made the mach e. Actually did testing using the my color ambient lighting to save energy. 😆
@@4literv6 Why not both? 🤪
It can be used for cool down too
I am so looking forward to see how the cars manufactured in Germany will be. Both in regards to paint quality and panel gaps but also overall "craftsman quality" if that is even a word. The new bigger cells, plus likely even better paint and less panel gap might just make the overall feel of the car take a turn more into true premium feel.
Thank you for an excellent presentation of these facts. More than ever, I know a Model 3 or Y will be my next vehicle. Great job!
Bjørn. I have been watching your channel long time ago. I did not see a video talking about rust protection for Teslas or another Evs. It would be interesting to have this information in your channel and how people in norway are dealing with rust with its cars. Here in Canada there is so many salt and abrasives to deal too every winter.
Let us know. Best regards.
Perhaps 2 to 3% of that 7% improvement in efficiency may be due to the Aero Wheels.
just FYI octovalve explanation: th-cam.com/video/rgmBpEQtJ1s/w-d-xo.html IMHO when driving the 2021 model 3 it has been using the "Heating 2" mode because the battery inlet has been very cold. When standing in camp mode the "Heating 1" has been used to extract heat from outside air. Battery pre-heating when going to supercharger the "Heating 5" has been used.
This is the big different with Tesla (björns close up speech)! Yes it ist!
Nice NERD job, that’s why those style videos are the best, keep informing in depth like this !
Super super interesting. Thank you so much for your work. I’m following you for years and it’s so great what you do for all of us!
Great deep insightful test !
BTW, the consumption is not just the heat pump, it includes the vents.
Anoterh great vid TB, so informative and useful and giving some real world testing - plus TB humour :-)
This is very good math and matches with the "less practical more theoretical" test done in your house.
Approved,
Cheers,
Sherlock
Incorrect. The test done in front of my house was to measure stationary consumption which is also relevant. And that test elimiates differences in weather that we had here. So both these tests have great value.
Great review on the inlet temperatures in the different state machines.
So, with the octovalve and heat pump Teslas now don’t store just electrical energy in batteries, but both electrical and thermal energy :)
Heat reuse from motor and battery losses reused in the cabin is the ultimate system optimization.
Look forward for a test during a hot summer to see how the octovalve is used there, but not many of those hot days in Norway...
Excellent investigation Björn. I love your videos :-)
I own a 2015 ford escape 4x4, which is the car you want on unpredictable roads like we have in my country here. I am doing my research on what can replace my car but still do the job, really waiting for Berlin to ramp up mY production, there is no other option than Tesla if you are looking for a decent EV, everything else are just half-measures. Thank you for bringing this topic, the world have to know
Hi Bjørn it seems that you are charging slow because you probably have the LG battery instead of the Panasonic. What is your nominal full pack - is it 74.5kWh or 77.5kWh in the 2021? If it is 74.5 then you got the LG battery on the 2021 and slower charging. Max V3 is about 210kW, then it drops to below 100kW very fast at 45% previously at 60+%. Maybe LG batteries can't handle the higher temperature and shut down the stators and do not reach max kW speed like the Panasonic ones.
Model 3 has the 2170 Tesla batt.
@@luisfernandes4145 2170 is a form factor, but the content is not always the same.
@@luisfernandes4145 Probably it is the 2170 variant, but one made by LG and one by Panasonic. The LG one doesn't charge so fast and has lower density, less capacity.
www.youcheyihou.com/news/738609
@@JohnDoe-vx3z I guess you don't know, but all USA made model 3 and Y use the same 2170 Tesla made in Giga One.
@@luisfernandes4145 No, that is not true. There is a charge from LG coming from Korea, built inside Fremont (at least for some european cars). I can't post links unfortunately to show you, because the comment will be hidden.
Can't wait for Bjorn to test the made in Shanghai Model 3 SR+ with LFP batteries - range, consumption, charging speed. And of course how is the finish compared to the Fremont Model 3. It seems there are no decent EV reviewers in China, or at least who speak English.
Thanks for Part 2 of this comparison test. The new heat pump is super efficient, or, to put it another way, the older MC Hammer heat system is conspicuously inefficient. Sheeet!
MC Hammer is only efficient in summer.
I have a 2020 august model 3. Should've waited 2 months...
If you always wait for the best, you wait for ever :) I missed the extra 6k subsidy for e-cars by 1 day... i feel your pain ;)
you want this new phone, but do you NEED it?
the same for me....
or 3 or 4 or .... yeah, I can imagine your frustration . But . this said . Everyone , who invests a lot of money in buying an EV, ATM has an early-adaptor-status ... more or less ....and at least you have bought your car from a company that shares a lot of their achievements with their customers .
Well, Teslas are pretty upgradeable. I wish they take that more in consideration in the future. Upgrading a car just like a PC would be great.
Was thinking in the beginning you were about to say, "This is my Tesla Model 3, there are many like it, but this one is mine." 😀
Super video Bjørn! Thanks
Thanks for doing such a detail and thorough analysis, I appreciate it!
nice to see you have confirmed the heat pump/ octovalve advantage been waiting for you to do this test will now order a model 3 will use one of your referal codes do you have a preference Thanks Bjorn
Have a deposit on an ID4 in Ireland. Has no heat pump and doesn't offer as an extra either. Coming from 28kwh Ioniq.
This is good news. Better heat utilization will help out a lot in the Midwest US where long distance travel is common during cold weather and supercharger are spread farther apart. Makes less of a compromise from a gas car when you don't have to choose between heat and significant range loss. I will be saving my money for a long range 3 or Y now I think.
When you 'oof' notice the humming of the heat pump, the liters per minute through the battery pack increased from 7.20 -> 8.60. Then 10/11 with the in-car heating turned off.
@BjØrn you should try manual heater, Temp set to 19°C, ventilation to position 1 and all seats heater to 2 or 3. AC set to ON to avoid mist on glasses. This change everything on power consumption !!!!
Looks like this would dramatically reduce to consumption for my personal use. My model 3 uses 250-300wh/km on daily driving during the winter months because I drive mostly
@@abraxastulammo9940 Because during my daily driving, which consists of getting into a cold car and driving only about 10km to work, the heating of the car will be a much bigger part of the overall energy consumption than it will on longer trips. When you start a cold tesla the heater can pull more than 6-7kW in order to heat up the cabin fast. On some days during winter the consumption on the way to work can be almost 300 wh/km. While on a nice summer day it will be around 150 wh/km.
Bjorn is the EV ninja....if the proof is in the pudding...he eats pudding a lot! 😂
Thanks for such a great test!
You are right ! My next ev will be a model Y !
Hey man, i just happen to have the same Model 3 LR 2021: glad you noticed also the vibration of the heatpump when idle.. it seems like telluric movement in the battery pack, reminds me of the Red October submarine noise (from the popular movie): think it’s kinda cool shit uh? 😜
One of the best videos I've ever seen in your channel, congratz 🙌
Thank you Bjorn! Keep up the good work! A voice from Canada.
Maybe you should do a baseline difference test without heater enabled in both cars?
So you know difference because of mud flaps, tires/rims.
Tested earlier in another video about MC Hammer vs i3.
@@bjornnyland But not between these two Model 3's, is what I think Olav Alexander Mjelde is saying?
"Maybe I'll just stop ranting here then". Quotes like this make TB's videos deserve extra likes :) ** pressing the like button will cause extra wear to your brain's arithmetics processor and level up your EV skills **
Maybe time to upgrade the ECU?
Why does the Model 3 charge faster when the cell temperature is 50 deg C while other vehicles "rapidgate" when the temperature is only 40 deg C?
Hi Björn, i am a longtime follower of you and Tesla - i finaly gott my Model 3 in Dezember 2019. honest question: do you think selling it now saves me more money than selling it e.g. mid next year when i could directly upgrade to a Model y from Berlin maybe? When is best point in time to ditch the „old“ Tech? (Without having deep pockets like elon ;-) )
Heaterproblem? I had the same problem with my heater (LR from April 2019), at that point I had some temp readings in the Scan My Tesla app that showed left and right heater sensors. And it resulted in a very hot footwell in the passenger side. IT turned out that one of the heat sensors were 15 degrees Celsius off, and the replaced the resistive heater unit.
I think you have the same heater sensor problem, resulting in hot footwell and extra consumption.
Thanks for the tip. I will ask Tesla about this.
Thank you, very cool vid. I had to watch while shopping, Did I miss the MC Hammer comparison between AC+heater and heater only?
Btw, your tests are showing market dominance in EV testing. If that continues, I will have to complain to the competition authorities.
It was interesting that after it finished supercharging, that it pulled beat from the battery to heat up the cabin instead of from the front stator that was at 110C. You would think it would pull from there first since it doesn't really use the front stator when driving on the highway much. So the heat in the stator was simply thrown overboard.
Nope, the heat from stator was not wasted. The car uses heat from both motors and battery. Look at powertrain inlet. It's lower than powertrain temp which means that liquid going there cools down the motors and transfers the heat to the cabin.
@@bjornnyland Thanks for the reply! Ah, I see what you mean. I saw that it stayed at 110C for a long time, I guess that is simply the max of the sensor. Since it wasn't dropping, I thought the powertrain inlet was for the rear stator. Good point, thanks!
Excellent Video as always!
7% more efficient despite the definately worse weather ? .. dayum
Great conclusions. 👌
EVs changed forever your thinking about efficiency. Do more with less. Sandy Munro is a great source of technical information about Tesla's present and future, and Solving the money problem (I think) is a good example of knowing where is Tesla and all the other "EV competitors", but it seems that the gap is bigger and Tesla will continue to lead every segment market share.
There's always a better one (after you bought yours)
Model Y perhaps
Great video, really interesting to see how the heat pump and octo-valve affect efficiency. Undoubtedly Bjørn is the he best and most thorough EV reviewer. Would it be possible to do the same test, comparing the ID.3 with and without the optional heat pump.
Hi Bjorn, in your edit if you could add a highlighter to the perf values on your app as you describe them in your videos it would be incredibly helpful! I find I'm hunting for the number you're referring too and I'm not focusing on what you're saying.
Thanks for all the effort you put into these videos, much appreciated - Yo!!
I have described then in another video before.
It would be an opportunity at night to also test if there is any improvements in the headlight design and output compared to your 2019 car.
Excellent video. Very interesting. Thank you. The difference should be a little bigger than 7% (15 Wh/km), though, as the driving conditions with the new model were worse.
But his car is less efficent in the first place!( performance model with modifications that affect consumption). Also new Teslas are more efficient to start with even without heat pump...
I was lucky and sold my 2020 Tesla Model 3 in denmark an bought a new Model 3. I am so happy that i got that chance.
But still if i could not sell the car i would be happy. As Björn said the model 3 is the best EV
Another good info video! Thanks for this one👍
13:18 I wish you had brought a thermal camera to really hammer home the point more visually. Maybe at a later date you can edit in a thermal camera view in this video? It does not have to be from the test drive itself, just take any clip you already have of the heat escaping from the wheel well and paste it into this video.
Nice to see 2021 Model 3 to catch up with the efficiency of 2016 Ioniq! ;)
Dont make me laugh :)
@@johnarildramberg3132 Let NAF settle this...
This is excellent. I wonder if the heating could be made more efficient though by directly heating the cabin rather than through the HVAC when you are going to supercharge. That way, the heat is not syphoned from the battery only to be added back to the battery during preconditioning.
Doesn't Taycan have heat scavenging as well?
Of course. I never claimed that Tesla was the only one.
The new battery cell is not suppose to get hot, that's why they can make it larger. Wondering what effect this will have here as they won't be able to steal heat from battery pack this much.
I set my temp at 19.5°
windshield only
Fanspeed on 1
An Seat heater on 1 or 2 it depends
Thats after the car is preheated from the wall